TY - JOUR AU - I.P. Studenyak AU - A.I. Pogodin AU - I.A. Shender AU - M.J. Filep AU - O.P. Kokhan AU - P. Kopčanský TI - Electrical properties of cation-substituted Ag 7 (Si 1-x Ge x )S 5 I single crystals T2 - Semiconductor Physics, Quantum Electronics & Optoelectronics VL - 24 IS - 3 SP - 241 EP - 247 PY - 2021 DO - 10.15407/spqeo24.03.241 UR - https://doi.org/10.15407/spqeo24.03.241 AB - High-quality single crystals of Ag7(Si1–xGex)S5I (x = 0.2, 0.4, 0.6, 0.8) solid solutions are grown from the solution–melt by vertical zone crystallization method. The measurements of electrical conductivity of Ag7(Si1–xGex)S5I solid solutions were performed using the impedance spectroscopy method within the frequency range from 10 Hz up to 2·106 Hz and temperature interval 293–383 K. Ionic and electronic components of electrical conductivity, as well as their ratios, were determined using the Nyquist plots. KW - argyrodites KW - crystal structure KW - superionic conductors KW - cationic substitution KW - electrical conductivity ER -